andif - I have no child yet and the fetus only weighs a few hundred grams, so that's not much use I did, however, put a wooden 'alphabet walker' (new-in-box) in the MB seat and pretended that was dd and tried to push / tip etc.
It was fine.
You know how sometimes you see shopping trolley wheels going crazy, or strollers with small, solid swivel wheels jumping around like they're on acid... the Urban with its swivel wheel inherits the tendency to take the path of least resistance. It won't spin in a ridiculous fashion, but it turns constantly.... that is why the Terrain is easier to push.
If you want to do stroller ballet, the Urban might be better.
cp: Second the Miele shout. They cost more and are simpler and stronger. Built to last. Industrial stuff. I just posted on Twiglett's oven thread a phone number to a trade dealer. Find yourself a business, get your act together, ask no questions and order through them. (Search 'Miele' in Current threads - hope they're still in business).
The lady in my shop assembed the Terrain from 'new-in-box' in less than 3 minutes. You need a teensy bit of brute force (supplied, ahem, by my good, strong self) to spread the forks apart for the front wheel, but it's v. straight forward. Even your dhs should be fine.
cp: NB: Terrain is easier to get up kerbs: it is lighter, the front wheel won't swivel in the air and as the balance is more to the rear, you need apply less downward force to achieve the same 'nose lift' as on an Urban.... plus, as guru Nigel mentioned, you need to push / flex / push on an '05 Urban as it has that plastic adjustable handle.
cp, my twin, lost at birth, I run two Aqualisa quartz units off a combi boiler (so the unpumped model). No probs at all.
vickiyumyum... we look forward to welcoming the poor women you scared to death with buggy freakiness.
cp: Get the Terrain.